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Report a calculation error

If a calculator gives you a result that looks wrong, please tell us which page, what numbers you entered, and what you expected. We check every report against the source method and correct confirmed errors promptly.

General questions

For questions about how a calculation works, see the methodology section on the calculator's page or the Methodology page.

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Email us at [email protected]. We aim to respond within two business days.

What we can't help with

We're a calculator site, not a law firm. We can't give legal or financial advice, review your specific case, or recommend attorneys. Our tools produce rough estimates for informational purposes only — please consult a licensed attorney or financial advisor before making any legal or financial decision.